<div a></div>
<div b></div>
<style>
body {
background: #6592cf;
}
div[a] {
background: #060f55;
width: 140px;
height: 140px;
border-radius: 0 0 50% 50%;
margin: 110px auto;
}
div[b] {
background: #060f55;
width: 20px;
height: 110px;
border-radius: 10px;
position: absolute;
inset: 50px 130px;
box-shadow: 20px 0 #6592cf, 40px 0 #060f55, 60px 0 #6592cf, 80px 0 #060f55,
100px 0 #6592cf, 120px 0 #060f55, 60px 150px #060f55;
}
</style>
<p a><a b><style>*{background:#6592cf}[a]{background:#060f55;width:140;height:140;border-radius:0 0 50% 50%;margin:110 auto}[b]{background:#060f55;width:20;height:110;border-radius:10px;position:fixed;inset:50px 130px;box-shadow:20px 0#6592cf,40px 0#060f55,60px 0#6592cf,80px 0#060f55,100px 0#6592cf,120px 0#060f55,60px 150px#060f55